ltjndstrom



` 3 Sheets-Sheet I.

(No Model.)

G. J. LUNDSTROM.

GHEESE PRESS.

oo Wxv .r w, n W W W w fm P .W W, O.

3 Sheets-Sheet 2.

(No Model.)

CJJ. LU'NDSTROMY.

l(IHET'JSE PRESS.

Patented Aug. 27, A895.

I J Il I UNITED STATES -PATENT (Di-unionL CARL J OHAN LUNDST'ROM, OFLITTLE FALLS, NEW YORK, ASSIGNOR TO D. H. BURRELL & CO., OF SAME PLACE.

CHEESE-PRESS.

sr'norrIoArIoN forming pm of Letters Patent No. 545,206, sama August 27,1895.-

Applioation filed January 9, 18 95 i To all vhom it may con/ccm,.-

Be it known that I, OARL JOHAN LUND- STROM, a subject of the King' ofSweden and Norway, residin g at Little Falls, in the county of Herkirnerand State of New York, have invented a new and useful lmprovement inCheese-Presses, of which the following is a specification.

This invention relates to an automatic pressure mechanism such as areused in cheesepresses for pressing the footfblock automatically againstthe cheeses after the pressure has been applied by hand to thehead-block, and particularly to such an automatic pressure meehanism inwhich the foot-block and the adj acent stationary tail-plate areprovided with gear-racks, with which meshes a pinion, which is actuatedby a weight-lever or other pressure device. An automatic pressuremechanism of this character is shown and described in Letters Patent No.528,001, dated October 23, 1894, and granted to D. H. Burrell & Go. asassignee of myself.

My present invention has for its objects to improve this class ofpressure mechanisms, to prevent binding of the parts, and thereby insurethe proper automatic operation of the mechanism under all circumstances,and to contrive the mechanism in such a manner that it can be applied togang cheese-presses of ordinary construction without necessitating anychange in the press.

In the accompanying drawings, consisting of three sheets, Figure 1 is alongitudinal sectional elevation of a gang cheese-press provided with myimproved automatic pressure mechanism. Fig. 2 is a top plan view of thesame. Fig. 3 is a longitudinai sectional elevation of the automaticpressure mechanism with the weight-lever elevated. Fig. 4 is across-section in line a et, Fig. 3, looking rearward. Fig. 5 is alongitudinal sectional elevation of a modified construction of myimproved pressure mechanism. Fig. 6 is a crosssection in line 6 6, Fig.5, looking rearward. Fig. 7 is a longitudinal sectional elevation ofanother modified construction of my mproved pressure mechanisnl. Fig.8is a cross-section 7, looking rearward. Fig. 9

in line 8 8, Fig.

Serial No. 534.302. Co model.)

is a longitudinal sectional elevation showing i a modified arrangementof my improved pressure mechanism.

Like letters' of reference refer to like parts in the several figures.

A A represent the side pieces,`and A' the rear cross-piece, of the frameof an ordinary gang cheese-press. B represents a gang ot' telescopiccheese-hoops of ordinary construction. O represents the head-block, andc the usual hand-screw by which it is operated. D represents thecross-piece in which the handscrew works, d the hand-erank secured tothe screw, and d' d the ratchet wheel and lever mounted thereon. All ofthese parts may be of any well-known or suitable construction.

E represents the movable foot-block, which bears against the rear end ofthe gang of cheese hoops by means of an interposed wooden block E'or'otherwise.

F F' represent, respectively, an upper and a lower arm or bracket projecting rearwardly from the foot-block. The upper arm F is provided onits under side with a gear-rack f and the lower arm F' is provided onits upper side with a gear-rack f'.

G is the stationary tail-plate, which is arranged against the `frontside of the Vrear cross-piece A' of the press-frame and secured to theside pieces A of the press-frame by ears g, resting upon the side piecesin front of the rear cross-piece A' and bolts g' pass- -ing throughthese ears and the side pieces A.

This tail-plate is provided with an upper and a lowerforwardly-projecting arm or bracket I-l H', provided, respectively, ontheir upper and lower sides with gear-racks h h' and ati-- rangedbetween the arms F F' of the footblock.

I represents a pinion arranged between the upper gear-racks f h and I'is a similar pinion meshing with the lower gear-racks f' h'. The upperpinion I is secured to'a transverse shaftj, which carries at one end aWeight-lever J, so arranged that when the foot-block is pressed back bythe application of the hand-pressure to the gang of cheeses the lever israised.

K represents a pair of gear-segments seand meshing therewith,

cu red to opposite sides of the upper pinion I, and K' represents asimilar pair of gear-segments secured to opposite sides of the lowerpinion I'. The upper and lower gear-segments are arranged outside of thearms or gear-racks and mesh with each other and transmit the motion fromone pinon to the other.

When the cheese-hoops have been placed in the press-frame the foot-blockis in its forward position, the weight-lever is in its lowest position,and the pinions stand between the rear ends of the gear-racks on thefootblock and the front ends of the gear-racks on the tail-plate, asrepresented in Figs.1 and 2. Upon applying the hand-pressure by means ofthe screw the foot-block is forced backwardly, causing a simultaneousrearward movement of both pinions and a corresponding elevation of theweight-lever. When the foot-block has reached the limit of its rear-Ward movement, the parts of the pressure mechanism are in the positionrepresented in' Fig. 3. The rearward movement of the footblock nowceases and the weight-lever exerts a constant forward pressure againstthe footblock and descends until the lever reaches its lo west position,when it can be elevated again by applying pressure by the hand-screw.

The segmental gears which connect the two pinions cause the latter tomove in unison back and forth. This insnres a perfectly parallel motionof the movable racks and prevents the foot-block, to which the movableracks are secured, from changing its position With reference to thecenter lineof the press-frame, but maintains it at right angles theretoduring its movements, thereby preventing binding and the interferencewith the working of the mechanism resulting therefrom. It is obviousthat this mechanism can be easily applied to any ordinarypress-frame,particularly when the shaft of the weight-lever is arrangedat such a height, as shown in Fig. 1, that it stands above the sidepieces of the press-frame, in which case the side pieces are notrequired to be notched or slotted for making room for the shaft.

The pinions, gear-racks, and segments are preferably provided with plainbearingfaces on the outer sides of the teeth, as shown,

In the modified construction represented in Figs. 5 and 6 thearrangement of the pinions and gear-segments is reversed-that is to say,while in the construction represented in Figs. 1 to at each pinion isarranged between a pair of gear-segments, in the constructionrepresented in Figs. 5 and 6 each gear-segment is arranged between apair of pinions. In these last-named figures, 12 I2 represent the upperpinions meshing with two gear-racks2, formed on the under sides of twoupper arms F2 on the foot-block, and K2 represents the gear-segmentarranged between these pinions. I8 13 represent the lower pinionsmeshing with two gear-racksfs, formed on the upper sides of two'lowerarms F3 on the footblock, and 'K3 the segment arranged between thesepinions. H2 E2 represent two arms formed on the tail-plate and eachprovided on its upper and lower sides with gear-raeks h2 hs, which mesh,respectively, with the upper and lower pinions.

In the modified construction represented in Figs. 7 and 8 thearrangement of the pinions, arms, and segments is the same as that whichis represented in Figs. 1 to 4, but instead of being provided withintermeshng teeth, as represented in the last-named fignres, these partsare constructed with plain faces and are connected by straps. Zrepresents the straps which connect the pinions with the arms of thefoot-block, m. the straps which connect the pinions with an arm on thetailplate, and 'n the straps which connect the segments. Instead ofsecuring` the tail-plate to the rear portion of the press-frame, it maybe made movable like the foot-block by placing the mechanism between twogangs of cheese-hoops in the same press-frame, as indicated in Fig. 9.

Vhile I have shown and described this pressure mechanism as beingapplied to the pressure-block of a cheese-press, for which use it isprincipally designed, it is obvious that it may be em ployed in othermachines in which a head or block is required to be moved in a similarmanner.

I claim as my invention- 1. The combination with a supporting plate anda pressure block movable toward and from the same, of arms on the blockand plate forxning between them two pairs of opposing surfaces, a wheelarranged between each pair of opposing surfaces and geared with itssupport so as to roll as the block moves toward or from the plate, geardevices connecting said wheels and causing them to movein unison, andmeans whereby one of said wheels is actuated, substantially as setforth.

2. The combination with a supporting plate and a pressure block movabletoward and from the same, of parallel arms secured respectively to theplate and the block, pinions interposed between adjacent arms and gearedthereto, gears connecting the pinions, and means whereby one of saidpinions is actuated, substantially as set forth.

8. The combination with a supporting plate and a pressure block movabletoward and from the same, of parallel arms secured respectively to saidplate and block and provided on their opposing sides with the racks,gear pinions arranged between adj acent racks and meshing therewith,intermeshing gear segments secured to the pinions, and an actuatinglever connected with one of the pinions, substantially as set forth.

4. The combination With a supportingplate a, weight level' secm'ed toone of Said pinions mda pressure block movable toward andfromsubstantially as set forth. :o

;he same, of parallel arms secured respectlvely to said plate and blockand provided on ;heir opposug sides with gear maks, gear pinionsarranged between adjaoent raoks and meslling therewith, a pair of gearsegments secured to opposite sides of each pinion; and

Wtness my hand this 3181: (lay of December, 189%.

' CARL JOHAN LUNDSTROM. Witnesses:

HARVEY FELDMEIER, G110. W. SEARLES.

